Atmospheric Correction of MODIS Imagery for Turbid Coastal Waters

An amendatory algorithm is developed to correct the atmospheric effects for coastal waters by combining the Gordon’s atmospheric correction algorithm and the Arnone’s re-search results.Coastal waters can have significant reflectance in the 748 nm and 869 nm channels of MODIS or other instruments.The new method separates the water leaving radi-ance from the aerosol path radiance in these two channels by solving a set of simple algebraic equations,and the derived aerosol path radiance is then extrapolated to the expected chan-nels.The result demostrates that this atmospheric correction algorithm can achieve very high accuracy,and can be used to the areas where no caseⅠwaters existed or caseⅠwaters just covered by clouds.